Would appreciate some help
2 answers:
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Answer:
D) x=
Step-by-step explanation:
The quadratic formula is :
A in terms of this question=9
B in terms of the question is 12
C in terms of the question is -24.
This question is an example of a quadratic equation. To work this out you may first need a calculator. The first step is to substitute the values of a,b and c into the formula. So once substituted the formula of becomes
. Although when written in a calculator there will not be a plus and minus button and so you would have to do this separately.
However when substituting the values it would be best practice to put them in brackets.
1) Substitute the values into the equation for +.
2) Substitute the values into the equation for -.
Solution:
Let each pond of jelly beans cost $x.
and each pond of almonds cost $y.
Then we can write
Now solve these two equations together using substitution we get
Hence each pond of jelly bean cost 1.25$
Each pond of almond costs 2.25$
Write this as an equation and solve
The number is 30
The number is 30